diff --git a/source/_layouts/default.html.twig b/source/_layouts/default.html.twig
index 2f4407f6..eccc02ac 100644
--- a/source/_layouts/default.html.twig
+++ b/source/_layouts/default.html.twig
@@ -18,8 +18,8 @@
         <meta http-equiv="X-UA-Compatible" content="IE=edge">
         <meta name="viewport" content="width=device-width, initial-scale=1">
 
+        <link rel="stylesheet" href="{{ site.url }}/components/bootstrap/css/bootstrap.min.css">
         <link rel="stylesheet" href="{{ site.url }}/css/styles.css">
-        <link rel="stylesheet" href="{{ site.url }}/components/bootswatch/cosmo/bootstrap.min.css">
         <link rel="stylesheet" href="{{ site.url }}/components/highlightjs/styles/{{ site.hightlightjs_style }}.css">
         <link rel="stylesheet" href="{{ site.url }}/components/font-awesome/css/font-awesome.min.css">